/**
 * *****************************************************************************
 * Copyright 2012 University of Southern California
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 *
 * This code was developed by the Information Integration Group as part of the
 * Karma project at the Information Sciences Institute of the University of
 * Southern California. For more information, publications, and related
 * projects, please see: http://www.isi.edu/integration
 *****************************************************************************
 */
package edu.isi.karma.controller.command.importdata;

import java.io.File;

import javax.servlet.http.HttpServletRequest;

import edu.isi.karma.controller.command.Command;
import edu.isi.karma.controller.command.CommandFactory;
import edu.isi.karma.rep.Workspace;
import edu.isi.karma.util.FileUtil;
import edu.isi.karma.webserver.ContextParametersRegistry;
import edu.isi.karma.webserver.ServletContextParameterMap;
import edu.isi.karma.webserver.ServletContextParameterMap.ContextParameter;

public class ImportCSVFileCommandFactory extends CommandFactory {

    @Override
    public Command createCommand(HttpServletRequest request,
            Workspace workspace) {

    	ServletContextParameterMap contextParameters = ContextParametersRegistry.getInstance().getContextParameters(workspace.getContextId());
		File uploadedFile = FileUtil.downloadFileFromHTTPRequest(request, contextParameters.getParameterValue(ContextParameter.USER_UPLOADED_DIR));
		

        if (request.getParameter("revisedWorksheet") == null) {
            return new ImportCSVFileCommand(getNewId(workspace), Command.NEW_MODEL, uploadedFile);
        }

        return new ImportCSVFileCommand(getNewId(workspace), request.getParameter("revisedWorksheet"), uploadedFile);
    }

	@Override
	public Class<? extends Command> getCorrespondingCommand()
	{
		return ImportCSVFileCommand.class;
	}
}
